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Application of GeneXpert on Bronchoscopic Samples for Patients Suspicious of TB

The Chinese University of Hong Kong logo

The Chinese University of Hong Kong

Status

Completed

Conditions

Observation

Treatments

Device: GeneXpert

Study type

Observational

Funder types

Other

Identifiers

NCT02838641
2014.556

Details and patient eligibility

About

This is an observational study using Bronchial-alveolar lavage (BAL) as specimen for GeneXpert, a real time polymerase chain reaction (PCR) test for detection of tuberculosis (TB). Patients suspicious of TB, who require bronchoscopy as part of the investigation procedures, will be recruited for this study over a period of 18 months. Clinical likelihood of TB will be systematically scored according to various clinical parameters. This will determine the pre-test probability. Clinician will decide if anti-TB treatment is to be started and patients will be followed up for a minimal of 18 months. Sensitivity, specificity, positive, negative predictive values and the respective likelihood ratio will be calculated accordingly.

Enrollment

219 estimated patients

Sex

All

Volunteers

No Healthy Volunteers

Inclusion criteria

  1. Patients > 18 years old suspected of TB clinically.
  2. Patients suspected of TB but both smear microscopy and TB PCR of sputum are negative or sputum cannot be produced.
  3. BAL samples obtained following standard investigation procedure
  4. CXR or CT imaging available.

Exclusion criteria

  1. Bronchoscopy is not planned as a necessary procedure for investigation.
  2. Diagnosis of active TB has been made by other means.

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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